公开(公告)号：US08243872B2

公开(公告)日：2012-08-14

申请号：US12146493

申请日：2008-06-26

申请人： Kang-Hee Lee ,  Hyung-Kyu Kim ,  Kyung-Ho Yoon ,  Young-Ho Lee ,  Jae-Yong Kim ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang-Hwan Shin

发明人： Kang-Hee Lee ,  Hyung-Kyu Kim ,  Kyung-Ho Yoon ,  Young-Ho Lee ,  Jae-Yong Kim ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang-Hwan Shin

IPC分类号： G21C3/34

CPC分类号： G21C3/352 ,  G21C3/322 ,  G21C3/3563 ,  Y02E30/38

摘要： A spacer grid can be applied to close-spaced nuclear fuel rods. The spacer grid is directed to solve the problem in which, as the outer diameter of each nuclear fuel rod increases due to the use of dual-cooled nuclear fuel rods for improving cooling performance and obtaining high combustion and high output power, the gap between the neighboring nuclear fuel rods is narrowed to thus make it impossible to use an existing spacer grid. The spacer grid is a combination of unit grid straps, each of which has supports for supporting each of the nuclear fuel rods set in a narrow array and has a sheet shape, which are combined with each other. The supports are located at positions shifted from the longitudinal central line of each unit grid strap toward sub-channels.

摘要翻译： 间隔栅格可以应用于紧密间隔的核燃料棒。 针对这种间隔格栅来解决这样一个问题，即由于使用双冷核燃料棒来提高冷却性能并获得高燃烧和高输出功率，因此每个核燃料棒的外径增加 相邻的核燃料棒变窄，因此不可能使用现有的间隔栅格。 间隔栅格是单元网格带的组合，每个网格带都具有支撑，用于支撑以窄阵列设置的每个核燃料棒，并且具有彼此组合的片状。 支撑件位于从每个单元格栅带的纵向中心线向子通道移位的位置。

公开(公告)号：US20100128835A1

公开(公告)日：2010-05-27

申请号：US12420874

申请日：2009-04-09

申请人： Kyung Ho Yoon ,  Jae Yong Kim ,  Young Ho Lee ,  Kun Woo Song ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Ki In ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Kang Hee Lee

发明人： Kyung Ho Yoon ,  Jae Yong Kim ,  Young Ho Lee ,  Kun Woo Song ,  Tae Hyun Chun ,  Dong Seok Oh ,  Wang Ki In ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Kang Hee Lee

IPC分类号： G21C3/30

CPC分类号： G21C3/322 ,  G21C3/33 ,  Y02E30/38

摘要： An intermediate end plug assembly for a segmented fuel rod can stably support the fuel rod to the end of its cycle even if an interval between the fuel rods becomes narrow due to application of a dual-cooled fuel rod, and reduce excess vibration induced by flows of interior and exterior channels of the dual-cooled fuel rod for obtaining high burnup and output. To this end, the fuel rod has a segmented structure so as to make its length short. A lower intermediate end plug includes at least one channel hole, through which a coolant flows into an internal channel of the fuel rod, so that a possibility of causing departure from nuclear boiling ratio (DNBR) of the dual-cooled fuel rod is reduced.

摘要翻译： 用于分段燃料棒的中间端塞组件即使燃料棒之间的间隔由于施加双重冷却燃料棒而变窄，也可以稳定地将燃料棒支撑到其循环结束，并减少由流动引起的过量振动 的双冷却燃料棒的内部和外部通道，以获得高燃耗和输出。 为此，燃料棒具有分段结构以使其长度短。 下部中间端塞包括至少一个通道孔，冷却剂通过该通道孔流入燃料棒的内部通道，从而降低了双重冷却燃料棒的核沸腾比（DNBR）的可能性。

公开(公告)号：US08693612B2

公开(公告)日：2014-04-08

申请号：US12557939

申请日：2009-09-11

申请人： Young Ho Lee ,  Kang Hee Lee ,  Jae Yong Kim ,  Kyung Ho Yoon ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Dong Seok Oh ,  Wang Ki In ,  Tae Hyun Chun ,  Kun Woo Song

发明人： Young Ho Lee ,  Kang Hee Lee ,  Jae Yong Kim ,  Kyung Ho Yoon ,  Hyung Kyu Kim ,  Chang Hwan Shin ,  Dong Seok Oh ,  Wang Ki In ,  Tae Hyun Chun ,  Kun Woo Song

IPC分类号： G21C3/34

CPC分类号： G21C3/352 ,  G21C3/356 ,  Y02E30/40

摘要： A spacer grid for nuclear fuel rods includes a plurality of unit spacer grids stacked one on top of another. Each unit spacer grid includes a plurality of unit spacer grid straps disposed at regular intervals in a row, and a plurality of fixing grid straps connected to respective opposite ends of the unit spacer grid straps so as to fix the unit spacer grid straps. Each unit spacer grid strap has convexities alternating with each other on opposite sides thereof at regular intervals, and at least one of the convexities has a diameter greater than the others. The unit spacer grids are rotated in one direction by a 90 or 180 degree angle when being stacked.

摘要翻译： 用于核燃料棒的间隔栅格包括多个堆叠在另一个顶部上的单元间隔栅格。 每个单元间隔栅格包括以规则的间隔布置成一排的多个单元隔离栅格带，以及连接到单元间隔栅格带的相应相对端的多个固定网格带，以固定单元间隔网格带。 每个单元间隔网格带在其相对侧上以规则的间隔彼此交替的凸起，并且至少一个凸起的直径大于其他直径。 当堆叠时，单元间隔栅格在一个方向上旋转90或180度。

公开(公告)号：US20100172460A1

公开(公告)日：2010-07-08

申请号：US12421829

申请日：2009-04-10

申请人： Kyung-Ho Yoon ,  Hyung-Kyu Kim ,  Jae-Yong Kim ,  Young-Ho Lee ,  Kang-Hee Lee ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang Hwan Shin ,  Kun-Woo Song

发明人： Kyung-Ho Yoon ,  Hyung-Kyu Kim ,  Jae-Yong Kim ,  Young-Ho Lee ,  Kang-Hee Lee ,  Tae-Hyun Chun ,  Wang-Kee In ,  Dong-Seok Oh ,  Chang Hwan Shin ,  Kun-Woo Song

IPC分类号： G21C3/34

CPC分类号： G21C3/322 ,  G21C3/3305 ,  G21C3/3315 ,  Y02E30/38

摘要： A perforated plate support supports dual-cooled fuel rods, each of which has concentric outer and inner tubes and is coupled with upper and lower end plugs at upper and lower ends thereof, and guide thimbles, each of which is used as a passage for a control rod. The perforated plate support is formed as a support plate having the shape of a flat plate, which includes internal channel holes, each of which has a diameter corresponding to an outer diameter of the inner tube, guide thimble holes, each of which has a diameter corresponding to an outer diameter of the guide thimble, and sub-channel holes around each internal channel hole. The upper or lower end of the dual-cooled fuel rod is coupled to the support plate such that the outer diameter of the inner tube is matched with the diameter of the internal channel hole.

摘要翻译： 多孔板支撑件支撑双重冷却的燃料棒，每个燃料棒具有同心的外管和内管，并且在其上端和下端与上端和下端塞连接，导向套管每一个用作通道 控制棒。 多孔板支撑件形成为具有平板形状的支撑板，该支撑板包括内部通道孔，每个内部通道孔的直径对应于内部管的外径，导向套管孔各自具有直径 对应于导向套管的外径，以及在每个内部通道孔周围的子通道孔。 双冷却燃料棒的上端或下端与支撑板相连，使得内管的外径与内通道孔的直径相匹配。